Gas separation process

Details Gas separation process Gas separation process

1984-07-02

1986-04-08

Sever, Frank

Refrigeration

Processes

Fractionally solidifying a constituent and separating the same

62124, B01D 904, G02B 112

Patent

active

045810524

ABSTRACT:
A crystallization process is disclosed for separating a crystallizable material and an excluded material which is at least partially excluded from the solid phase obtained upon freezing a liquid mixture of the materials. The solid phase is formed and melted at spaced locations in a liquid mixture of the materials and, within the liquid mixture, internal solid and liquid flows are maintained in opposite directions to effect separation of the materials. The solid phase is formed by evaporative cooling of the liquid mixture and melted by direct contact with a condensing vapor phase of the materials, each of these operations being performed substantially at the prevailing triple point locus conditions in the respective locations in the liquid mixture.

REFERENCES:
patent: 3443393 (1969-05-01), Goldberg
patent: 3486848 (1969-12-01), Hendrix
patent: 4406748 (1983-09-01), Hoffman
Rudd, Powers & Sirola, "Process Synthesis", pp. 259-280 (1973).
Scientific American, Dec., 1962, pp. 41-47.
Chemical Engineering, May 7, 1979, pp. 72-82, James A. Heist.

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